MAX6819 데이터 시트보기 (PDF) - Maxim Integrated
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MAX6819 Datasheet PDF : 8 Pages
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SOT23 Power-Supply Sequencers
ABSOLUTE MAXIMUM RATINGS
Referenced to GND
VCC1, VCC2, EN .....................................................-0.3V to +6.0V
SETV, SETD..................-0.3V to the higher of (VCC1 + 0.3V) and
(VCC2 + 0.3V)
GATE ...................................................................-0.3V to +12.0V
Input Current/Output Current (all pins) ...............................20mA
Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C)............696mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering 10s) ..................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC1 or VCC2 > +2.125V to +5.5V, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
VCC1, VCC2 Supply Current
VCC1, VCC2 Disable Mode Current
VCC1, VCC2 Slew Rate (Note 3)
Undervoltage Lockout (UVLO)
SETV Threshold
SETV Input Current
SETV Threshold Hysteresis
SETV to GATE Delay
SETD Ramp Current (MAX6820)
SETD Voltage (MAX6820)
SETD Threshold Hysteresis
(MAX6820)
GATE Turn-On Time
GATE Turn-Off Time
GATE Voltage
EN Input Voltage
SYMBOL
V CC1,
V CC2
ICC
VUVLO
VTH
tDELAY
ISETD
VSETD
CONDITIONS
(Note 2)
VCC1 = VCC2 = +3.3V
VCC1 = VCC2 = +3.3V, EN = GND
MAX6819
MAX6820 (Note 4)
VSETV rising, enables GATE
(Note 3)
VSETV falling, disables GATE
VSETV > VTH, VEN ≥ 2V (MAX6819)
VCC1 or V CC2 > +2.125V
VCC1 or VCC2 > +2.125V
VSETD falling
tON
tOFF
VGATE
VIL
VIH
CGATE = 1500pF, VCC2 = +3.3V, VGATE = +7.8V
CGATE = 1500pF, VCC2 = +3.3V, VGATE = +0.5V
With respect to VCC2 (Note 2)
RGATE > 50MΩ to VCC2
With respect to VCC2 (Note 2)
RGATE > 5MΩ to VCC2
VCC1 or VCC2 > +2.125V to + 5.5V
MIN TYP MAX UNITS
0.9
5.5
V
60
120
µA
20
µA
6
V/s
1.2 / tDELAY
1.875 2.0 2.125
V
0.602 0.618 0.634
V
10
100
nA
-1
%
140 200 280
ms
400 500 600
nA
1.210 1.242 1.273
V
-62
mV
0.5
1.5
10
ms
30
µs
4.5
5.5
6.0
V
4.0
6.0
0.4
V
2.0
Note 1: 100% production tested at TA = +25°C. Specifications over temperature limit are guaranteed by design.
Note 2: Either VCC1 or VCC2 must be > 2.125V. The other supply can go to 0.
Note 3: Guaranteed by design, not production tested.
Note 4: tDELAY (s) = 2.48 ✕ 106 ✕ CSET
2 _______________________________________________________________________________________
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